Home / 151,128.40-226,498.20-91,901.20

Finding the Fourth Proportional to 151,128.40, 226,498.20 and 91,901.20

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Solution

The fourth proportional to 151,128.40, 226,498.20 and 91,901.20 is: 137,733.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,128.40 : 226,498.20 = 91,901.20 : x
  2. Step 2: Convert to fraction form
    151,128.40/226,498.20 = 91,901.20/x
  3. Step 3: Cross multiply
    151,128.40x = 226,498.20 × 91,901.20
  4. Step 4: Simplify right side
    151,128.40x = 20,815,456,377.84
  5. Step 5: Solve for x
    x = 20,815,456,377.84/151,128.40
  6. Step 6: Final answer
    x = 137,733.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.